MYCTOPHIDAE 335 



Hob. Mediterranean; Atlantic; Marquesas Islands; Japan. 



I have examined more than fifty examples of this species from the INIediterranean 

 and Atlantic and find that, as suggested by Parr, it is impossible to recognise Taning's 

 two species, D. rafinesquei and D. holti, in the Atlantic, although the Mediterranean 

 material seems to fall readily into two forms. D. mollis, Taning, may also prove to be 

 identical with this species. 



Diaphus lucidus (Goode and Bean, 1895). 



Brauer, t.c. p. 164; Taning, t.c. p. 62; Parr, t.c. pp. 121, 141, fig. 31. 



St. 285. 16. viii. 27. 2° 43' 30" S, 00° 56' 30" W. 4|- m. net, horizontal, 125-175 (-0) m. : 2 

 specimens, 75-85 mm. 



St. 288. 21. viii. 27. 00° 5(5' 00" S, 14° 08' 30" W. Young-fish trawl, 250 (-0) m. : i specimen, 

 60 mm. 



Hah. Atlantic. 



Diaphus splendidus (Brauer, 1904). 



Brauer, 1906, t.c. p. 218, figs. 138-139; Taning, t.c. p. 60; Parr, t.c. p. 123. 



St. 285. 16. viii. 27. 2° 43' 30" S, 00° 56' 30" W. 4|m. net, horizontal, 125-175 (-0) m. : 3 

 specimens, 26-30 mm. 



The ' Discovery ' also obtained the following specimens of Diaphus, which are either 

 very young or poorly preserved, and cannot be identified with certainty: — 



Diaphus sp. 



St. 240. 2. vi. 27. 46° 36' 30" S, 45° 07' 00" W. I m. tow-net, horizontal, 0-5 m.: i specimen, 

 12 mm. 



St. 247. 13. vi. 27. 37° 20' 00" S, 12° 47' 30" W. Young-fish trawl, loo-i 15 (-0) m. : i specimen, 

 33 mm. 



St. 280. 10. viii. 27. 00° 36' 00" S, 8° 28' 00" E. Young-fish trawl, 100-200 (-0) m. : 7 specimens, 

 12-15 mm. 



Genus Lampadena, Goode and Bean, 1895 



Lampadena braueri, Zugmayer, 1914. 



Taning, t.c. p. 63 ; Parr, t.c. p. 149. 



St. 269. 26. vii. 27. 15° 55' 00" S, 10° 35' 00" E. Young-fish trawl, horizontal, 600-700 (-0) m. : 

 2 specimens, 88-94 mm. 



Depth of body 4^ to 4I in the length, length of head 3J to 3f . Snout about I dia- 

 meter of eye, which is twice or a little more than twice in length of maxillary, | of the 

 interorbital width, and about 3 in length of head. Dorsal 14-15; origin above root of 

 pelvic, about equidistant from tip of snout and front of supracaudal plate. Anal 14-15 ; 

 origin distinctly behind last dorsal ray. Pectoral 17. Pelvic 9. 40-42 scales in a longi- 

 tudinal series (from upper angle of gill-opening to base of caudal). Photophores rather 

 indistinct. PLO very close to lateral line. 2 PVO, the lower below the pectoral base. 



